//
//  UIBarButtonItem+Extensions.swift
//  传智微博
//
//  Created by apple on 16/6/29.
//  Copyright © 2016年 itcast. All rights reserved.
//

import UIKit



extension UIBarButtonItem {
    /// 创建 UIBarButtonItem
    ///
    /// - parameter title:    title
    /// - parameter fontSize: fontSize，默认 16 号
    /// - parameter target:   target
    /// - parameter action:   action
    /// - parameter isBack:   是否是返回按钮，如果是加上箭头
    ///
    /// - returns: UIBarButtonItem
    //遍历构造函数
    convenience init(title: String,fontSize:CGFloat = 16,target:AnyObject?,action:Selector, isBack: Bool = false) {
        let btn:UIButton = UIButton.cz_textButton(title, fontSize: fontSize, normalColor: UIColor.darkGray, highlightedColor: UIColor.orange)
        
        if isBack {
            let imageName = "navigationbar_back_withtext"
            btn.setImage(UIImage(named: imageName), for: UIControl.State(rawValue: 0))
            btn.setImage(UIImage(named: imageName + "_highlighted"), for: UIControl.State.highlighted)
            btn.sizeToFit()
        }
        
        
        btn.addTarget(target, action:action, for: .touchUpInside)
        
        
        //遍历构造函数 self.init 实例化UIBarButtonItem
        self.init(customView: btn)
        
    }
    
}










//import UIKit
//
//extension UIBarButtonItem {
//
//    /// 创建 UIBarButtonItem
//    ///
//    /// - parameter title:    title
//    /// - parameter fontSize: fontSize，默认 16 号
//    /// - parameter target:   target
//    /// - parameter action:   action
//    /// - parameter isBack:   是否是返回按钮，如果是加上箭头
//    ///
//    /// - returns: UIBarButtonItem
//    convenience init(title: String, fontSize: CGFloat = 16, target: AnyObject?, action: Selector, isBack: Bool = false) {
//        let btn: UIButton = UIButton.cz_textButton(title, fontSize: fontSize, normalColor: UIColor.darkGray(), highlightedColor: UIColor.orange())
//
//        if isBack {
//            let imageName = "navigationbar_back_withtext"
//
//            btn.setImage(UIImage(named: imageName), for: UIControlState(rawValue: 0))
//            btn.setImage(UIImage(named: imageName + "_highlighted"), for: .highlighted)
//
//            btn.sizeToFit()
//        }
//
//        btn.addTarget(target, action: action, for: .touchUpInside)
//
//        // self.init 实例化 UIBarButtonItem
//        self.init(customView: btn)
//    }
//}
